From 0218b6bde592540630600ea28cb5c3889e7fd849 Mon Sep 17 00:00:00 2001
From: Jonas Diemer <jonasdiemer@gmail.com>
Date: Wed, 17 Dec 2025 13:17:49 +0100
Subject: [PATCH] Fixed 1bpp inversion

---
 src/screens/SleepScreen.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/screens/SleepScreen.cpp b/src/screens/SleepScreen.cpp
index 5e4a3ae..d7432dd 100644
--- a/src/screens/SleepScreen.cpp
+++ b/src/screens/SleepScreen.cpp
@@ -130,9 +130,7 @@ uint8_t* loadBMP(const char* filename, int& width, int& height) {
         int byteIndex = x / 8;
         int bitIndex = 7 - (x % 8); // MSB first in BMP file format
 
-        // In 1-bit BMPs, bit value 1 typically means black and 0 means white
-        // Check if the bit is set (1) at the specified position
-        isBlack = (rowBuffer[byteIndex] & (1 << bitIndex)) != 0;
+        isBlack = (rowBuffer[byteIndex] & (1 << bitIndex)) == 0;
       } else { // 24-bit
         // For 24-bit BMPs, convert RGB to grayscale
         // BMP stores colors as BGR (Blue, Green, Red)